please i need corect answer Exercise: If the query is friends AND romans AND (NOT countrymen), how could we use the freq

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answerhappygod
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please i need corect answer Exercise: If the query is friends AND romans AND (NOT countrymen), how could we use the freq

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please i need corect answer
Exercise: If the query is friends AND romans AND (NOTcountrymen), how could we use the freq of countrymen?
• Exercise: Extend the merge to an arbitrary Boolean query. Canwe always guarantee execution in time linear in the total postingssize?
• Hint: Begin with the case of a Boolean formula query: in this,each query term appears only once in the query.
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